#include<iostream>
using namespace std;
typedef long long LL;
const int N = 110;
int a[N];
int n;
int main()
{
	cin >> n;
	bool flag = 0;
	int ans = 0;
	for (int i = 1; i <= n; i++) {
		int x;
		cin >> x;
		a[x]++;
		ans = max(a[x], ans);
	}
	cout << ans << endl;
	return 0;
}